Scale 1:500,000 (W 88°39ʹ--W 81°96ʹ00--W 42°54ʹ--W 39°21ʹ). 2 maps in booklet : col., mounted on linen ; 113 x 26 cm., folded in cover 27 x 36 cm.
Notes
Relief shown by gradient tints, contours and spot heights. Cover title. "2624:65/46:43." "Red information revised June 1932." "R 1928 and later revisions." North oriented to the upper left. Not for navigation; historical reference only.